Audit started to develop during ancient Eegypt and Babylon. However, throughout histroy, importance of audit is increasing. The reason for this is that the company environment is characterized with uncertain and risk, and to reduce this uncertainty, the audit process is being carried out. Auditing is a control of financial and overall business operations, and it can be internal, external, commercial, state, business audit and audit of financial statements. Each of this audit types is mutually different. The most important audit types are internal and external audit. Internal audit is carried out within the company's internal audit department and it controls the overall business of the company. On the other hand, external audit is carried out by external and certified auditor, and it controls and reviews company's financial statements. Audit committees are organized in order to control whether audit is carried out in accordance with auditing principles and standards. Audit committees have a major role in corporate governance. Corporate governance is a set of interactions between management, board, shareholders and their interests. Therefore, the role of audit committees in corporate governance is reflected through the creation of relationships with internal and external auditors and management. The most important role of audit committees in corporate governance is communication with the external and internal environment of the corporation. However, the role of audit committees in corporate governance depends on which model is being applied. So, there i san Anglo-American and European model and model in the Republic of Croatia.